20394588826 has 4 divisors (see below), whose sum is σ = 30591883242. Its totient is φ = 10197294412.

The previous prime is 20394588793. The next prime is 20394588827. The reversal of 20394588826 is 62888549302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10464267025 + 9930321801 = 102295^2 + 99651^2 .

It is not an unprimeable number, because it can be changed into a prime (20394588827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5098647205 + ... + 5098647208.

Almost surely, 2^20394588826 is an apocalyptic number.

20394588826 is a deficient number, since it is larger than the sum of its proper divisors (10197294416).

20394588826 is a wasteful number, since it uses less digits than its factorization.

20394588826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197294415.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 20394588826 in words is "twenty billion, three hundred ninety-four million, five hundred eighty-eight thousand, eight hundred twenty-six".